describe('animate option', function () {
    /////////////////////////////
    // SETUP FOR EACH TEST
    /////////////////////////////
    var div, map, group;

    beforeEach(function () {
        div = document.createElement('div');
        div.style.width = '200px';
        div.style.height = '200px';
        document.body.appendChild(div);

        map = L.map(div, {maxZoom: 18, trackResize: false});

        // Corresponds to zoom level 8 for the above div dimensions.
        map.fitBounds(new L.LatLngBounds([
            [1, 1],
            [2, 2]
        ]));
    });

    afterEach(function () {
        if (group instanceof L.MarkerClusterGroup) {
            group.removeLayers(group.getLayers());
            map.removeLayer(group);
        }

        map.remove();
        div.remove();

        div = map = group = null;
    });

    /////////////////////////////
    // TESTS
    /////////////////////////////
    it('hooks animated methods version by default', function () {

        // Need to add to map so that we have the top cluster level created.
        group = L.markerClusterGroup().addTo(map);

        var withAnimation = L.MarkerClusterGroup.prototype._withAnimation;

        // MCG animated methods.
        expect(group._animationStart).to.be(withAnimation._animationStart);
        expect(group._animationZoomIn).to.be(withAnimation._animationZoomIn);
        expect(group._animationZoomOut).to.be(withAnimation._animationZoomOut);
        expect(group._animationAddLayer).to.be(withAnimation._animationAddLayer);

        // MarkerCluster spiderfy animated methods
        var cluster = group._topClusterLevel;

        withAnimation = L.MarkerCluster.prototype;

        expect(cluster._animationSpiderfy).to.be(withAnimation._animationSpiderfy);
        expect(cluster._animationUnspiderfy).to.be(withAnimation._animationUnspiderfy);

    });

    it('hooks non-animated methods version when set to false', function () {

        // Need to add to map so that we have the top cluster level created.
        group = L.markerClusterGroup({animate: false}).addTo(map);

        var noAnimation = L.MarkerClusterGroup.prototype._noAnimation;

        // MCG non-animated methods.
        expect(group._animationStart).to.be(noAnimation._animationStart);
        expect(group._animationZoomIn).to.be(noAnimation._animationZoomIn);
        expect(group._animationZoomOut).to.be(noAnimation._animationZoomOut);
        expect(group._animationAddLayer).to.be(noAnimation._animationAddLayer);

        // MarkerCluster spiderfy non-animated methods
        var cluster = group._topClusterLevel;

        noAnimation = L.MarkerClusterNonAnimated.prototype;

        expect(cluster._animationSpiderfy).to.be(noAnimation._animationSpiderfy);
        expect(cluster._animationUnspiderfy).to.be(noAnimation._animationUnspiderfy);

    });

    it('always hooks non-animated methods version when L.DomUtil.TRANSITION is false', function () {
        // Fool Leaflet, make it think the browser does not support transitions.
        var realDomUtil = L.DomUtil;
        var fakeDomUtil = {};
        for (k in realDomUtil) {
            fakeDomUtil[k] = realDomUtil[k];
        }
        fakeDomUtil.TRANSITION = false;
        L.DomUtil = fakeDomUtil;

        try {
            // Need to add to map so that we have the top cluster level created.
            group = L.markerClusterGroup({animate: true}).addTo(map);

            var noAnimation = L.MarkerClusterGroup.prototype._noAnimation;

            // MCG non-animated methods.
            expect(group._animationStart).to.be(noAnimation._animationStart);
            expect(group._animationZoomIn).to.be(noAnimation._animationZoomIn);
            expect(group._animationZoomOut).to.be(noAnimation._animationZoomOut);
            expect(group._animationAddLayer).to.be(noAnimation._animationAddLayer);

            // MarkerCluster spiderfy non-animated methods
            var cluster = group._topClusterLevel;

            noAnimation = L.MarkerClusterNonAnimated.prototype;

            expect(cluster._animationSpiderfy).to.be(noAnimation._animationSpiderfy);
            expect(cluster._animationUnspiderfy).to.be(noAnimation._animationUnspiderfy);
        } finally {
            //Undo the DomUtil replacement hack
            L.DomUtil = realDomUtil;
        }
    });
});
